total and differential cross sections of the reaction pd → 3he + η at 49 and 60 mev excess energy

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ID: 203523
2012
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Abstract
The p + d → 3He + η reaction has been used recently for various precision experiments at COSY-Jülich, e.g. for the investigation of the η-nucleus final state interaction, the search for possible η-mesic nuclei as well as for the η-mass determination with highest accuracy. A remarkable feature of this reaction is the unexpected shape of the excitation function which is strongly influenced by the η-3He final state interaction. While close to threshold (Q ≤ 11MeV) a rich data sample has been provided by the ANKE collaboration, only limited information are available at higher excess energies. Therefore, new measurements at Q = 49 and 60MeV with high statistics have been performed at the WASA-at-COSY experiment. Due to the large angular acceptance of the detector detailed investigations on angular distributions as well as their energy dependance have been performed and will be presented and discussed. Supported by COSY-FFE grants
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Authors ;Täschner Alexander;Passfeld Annika;Khoukaz Alfons;Husmann Christina;Goslawski Paul;Demmich Kay;Bergmann Florian;Winnemöller Alexander
Journal utilitas mathematica
Year 2012
DOI
10.1051/epjconf/20123703003
URL
http://dx.doi.org/10.1051/epjconf/20123703003
Keywords
physics

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